just to avoid any confusion....
it never needs an update...
its bigger then any other gps, but...hey...you got the whole world on it.
it always shows you the way to the north...if you fix it on the north side of the equator, vice versa below.
No Microsoft software needed....BIG ADVANTAGE, as you will never face any virus problems.
Also, a big ATLAS manual comes with it...but would suggest you read and learn it at home, as its a bit massive for the road.